Battery box and electronic equipment

Abstract

The utility model provides a battery box and electronic equipment. The battery box comprises a box body, the box body comprises a box cover, a frame and a bottom protection plate, the box cover and the bottom protection plate are arranged on the upper side and the lower side of the frame respectively, and a containing cavity is defined by the box cover, the bottom protection plate and the frame; the liquid cooling plate is arranged on the bottom protection plate and located in the containing cavity, and the liquid cooling plate is provided with a liquid cooling flow channel for cooling liquid to flow; the battery module is attached to the liquid cooling plate, and the liquid cooling plate is used for conducting heat exchange on the battery module; the frame comprises a concave beam, the concave beam is arranged on the liquid cooling plate, the concave beam is provided with a concave part, and the concave part is used for accommodating a cable of the battery box. By additionally arranging the concave beams, cables can be arranged more orderly, occupied space is reduced, in addition, the structural stability of the whole battery box is improved, and the heat exchange effect is good.

Description

Technical Field

[0001] This application relates to a battery box and electronic device, belonging to the field of new energy battery technology. Background Technology

[0002] In recent years, the demand for power battery technology has matured, and the selection of power batteries for different vehicle models has become increasingly diversified due to factors such as vehicle application, market demand, and policies and regulations. Especially in the passenger vehicle sector, achieving cost targets while also considering energy density requirements makes the strength of the battery casing structure, its modal characteristics, sealing performance, and system thermal management design particularly important.

[0003] In the process of conceiving and implementing this application, the applicant discovered at least the following problems: the copper busbars in the battery box have a relatively complex wiring arrangement, poor safety, and take up space.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content

[0005] This application provides a battery box and electronic device. By adding a concave beam, the cable arrangement can be made neater and the space occupied can be reduced. In addition, the structural stability of the entire battery box is improved and the heat exchange effect is better.

[0006] This application provides a battery box, including:

[0007] The box body includes a lid, a frame, and a bottom protective plate. The lid and the bottom protective plate are respectively located on the upper and lower sides of the frame, and the lid, the bottom protective plate, and the frame form a receiving cavity.

[0008] A liquid cooling plate is mounted on the bottom protective plate and located within the receiving cavity. The liquid cooling plate has liquid cooling channels for the flow of coolant.

[0009] The battery module is attached to a liquid cooling plate, which is used for heat exchange of the battery module.

[0010] The frame includes a U-shaped beam, which is mounted on a liquid cooling plate and has a recessed portion for accommodating the cables of the battery box.

[0011] The beneficial effects of this application are as follows: by adding concave beams to form recessed sections to accommodate cables, the cable arrangement can be made neater, reducing space occupation, optimizing the internal space layout, and improving the integration and compactness of the battery box; at the same time, the concave beams in the frame adopt a concave aluminum extrusion profile longitudinal beam design, which can significantly improve the overall structural strength of the battery box, improve impact and vibration resistance, and enhance safety; in addition, the liquid cooling plate effectively exchanges heat with the battery module through the liquid cooling channel circulating coolant, keeping the battery within the optimal operating temperature range, and improving battery performance and lifespan.

[0012] In some alternative implementations, the U-shaped beam is located in the middle of the frame to divide the receiving cavity into two chambers;

[0013] There are two battery modules, which are located in two separate chambers.

[0014] It should be noted that the U-shaped beams in the middle of the frame not only serve a separating function but also enhance the overall structural strength of the frame. This design helps improve the battery box's impact and vibration resistance, increasing its durability.

[0015] In some alternative embodiments, the frame includes a front beam, a rear beam, a left beam, and a right beam, which are connected sequentially.

[0016] The U-shaped beam extends along the first direction, and a connector is provided on the rear beam. The first end of the cable is plugged into the connector, and the second end of the cable is plugged into the connector on the front beam.

[0017] The first direction is the direction from the rear beam to the front beam.

[0018] It should be noted that by installing connectors on the rear beam, and inserting the first end of the cable into this connector while the second end is inserted into the connector on the front beam, neat cable arrangement and fixation are achieved. This design helps reduce cable loosening and tangling, improves system neatness and reliability, ensures reliable electrical connections, reduces the risk of poor contact, and improves the overall electrical performance of the system.

[0019] In some alternative implementations, the frame also includes a crossbeam disposed on the bottom guard plate and located between the left and right side beams;

[0020] The U-shaped beam connects the rear side beam and the crossbeam.

[0021] It should be noted that the crossbeams are set on the bottom protective plate and located between the left and right beams, providing additional support for the frame. The U-shaped beams connect the rear beams and the crossbeams, forming a more stable structure. This design effectively improves the frame's resistance to torsion and bending.

[0022] In some alternative implementations, the U-shaped beam includes a first beam and two second beams;

[0023] The first beam is located on the bottom protective plate, and the two second beams are located on opposite sides of the first beam, forming a recessed area with the first beam and the two second beams.

[0024] The first beam has a support surface, which is the bottom surface of the recessed part, to support the cable.

[0025] It should be noted that the recess formed by the first beam and the two second beams provides a dedicated channel for the cable. The supporting surface of the first beam, serving as the bottom surface of the recess, effectively supports and secures the cable, preventing it from moving or being damaged during use, thereby improving the cable's lifespan and the system's reliability.

[0026] In some alternative implementations, both the first beam and the second beam are hollow structural components.

[0027] It's worth noting that the hollow structure significantly reduces the beam's weight, which is especially important for battery boxes that need to be moved or installed in applications such as vehicles. This reduces material usage, thereby lowering production costs. Furthermore, despite the hollow design, the beam's geometry still provides sufficient strength and rigidity.

[0028] In some alternative embodiments, the battery box further includes a first connector, a first connection hole in the bottom protective plate, a second connection hole in the liquid cooling plate, and a third connection hole in the first beam;

[0029] The first connector passes through the first connecting hole, the second connecting hole and the third connecting hole in sequence, and at least part of the first connector is accommodated in the first beam.

[0030] It should be noted that the first connector is used to fix the U-shaped beam, the liquid cooling plate and the bottom protective plate. Since the first beam is a hollow structure, at least part of the first connector can be hidden to improve space utilization.

[0031] In some alternative embodiments, the battery box further includes a first seal and a second seal;

[0032] The first seal is located between the box cover and the frame, and the second seal is located between the frame and the bottom guard plate.

[0033] It should be noted that the first seal is located between the cover and the frame, and the second seal is located between the frame and the bottom protective plate. These seals effectively prevent moisture and dust from entering the battery box, protecting the battery modules and other sensitive components from environmental influences and extending their service life.

[0034] In some alternative implementations, the U-beam is a one-piece molded structural component.

[0035] It should be noted that by making the concave beams as a single piece, not only can the connection strength between the concave beams be improved, but also the seamless connection between the various structural components of the concave beams can be achieved, thereby reducing the risk of cracking at the connection points between the various structural components of the concave beams.

[0036] In addition, this application also provides an electronic device including the aforementioned battery box.

[0037] The battery box and electronic equipment provided in this application include a battery box; the battery box includes a box body, including a box cover, a frame and a bottom protective plate, the box cover and the bottom protective plate are respectively disposed on the upper and lower sides of the frame, and the box cover, the bottom protective plate and the frame form a receiving cavity; a liquid cooling plate is disposed on the bottom protective plate and located in the receiving cavity, the liquid cooling plate has a liquid cooling channel for the flow of coolant; a battery module is attached to the liquid cooling plate, the liquid cooling plate is used for heat exchange of the battery module; the frame includes a U-beam, the U-beam is disposed on the liquid cooling plate, the U-beam has a recessed portion, the recessed portion is used to accommodate the cables of the battery box.

[0038] By adding U-shaped beams to create recessed sections to accommodate cables, the cable arrangement becomes neater, reducing space occupation, optimizing the internal space layout, and improving the integration and compactness of the battery box. Simultaneously, the U-shaped beams in the frame utilize a U-shaped aluminum extrusion profile longitudinal beam design, which significantly enhances the overall structural strength of the battery box, improves impact and vibration resistance, and strengthens safety. Furthermore, the liquid cooling plate effectively exchanges heat with the battery modules through liquid cooling channels, keeping the batteries within their optimal operating temperature range and improving battery performance and lifespan. Attached Figure Description

[0039] The above and other objects, features, and advantages of embodiments of this application will become more readily understood through the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application will be described by way of example and non-limitation, wherein:

[0040] Figure 1 This is an exploded schematic diagram of the battery box according to an embodiment of this application;

[0041] Figure 2 This is a schematic diagram of the frame structure in the battery box according to an embodiment of this application;

[0042] Figure 3 for Figure 2 A magnified view of a section at point I;

[0043] Figure 4 This is a partial structural diagram of the frame in the battery box according to an embodiment of this application;

[0044] Figure 5 for Figure 4 Enlarged view of a section at point II;

[0045] Figure 6 This is an assembly diagram of the recessed beam, bottom protective plate, and liquid cooling plate in the battery box of this application embodiment;

[0046] Figure 7 This is a first-view assembly cross-sectional view of the frame and bottom protective plate in the battery box according to an embodiment of this application.

[0047] Figure 8This is a second-view assembly cross-sectional view of the frame and bottom protective plate in the battery box according to an embodiment of this application.

[0048] Figure label:

[0049] 100-Battery Box;

[0050] 110 - Enclosure; 111 - Enclosure Cover; 112 - Frame; 1121 - U-shaped Beam; 11211 - First Beam; 11212 - Second Beam; 1122 - Front Beam; 1123 - Rear Beam; 1124 - Left Beam; 1125 - Right Beam; 1126 - Crossbeam; 1127 - Electrical Component Mounting Beam; 11271 - Left BMS Mounting Beam; 11272 - Right BMS Mounting Beam; 11273 - Left Short Longitudinal Beam; 11274 - Relay Mounting Plate; 11275 - Short Crossbeam; 11276 - BDU Mounting Beam; 11277 - Right Short Longitudinal Beam; 113 - Bottom Protective Plate;

[0051] 120-Liquid Cooling Plate;

[0052] 130-cable;

[0053] 140 - Connector;

[0054] 150 - First connecting piece; 151 - Bolt; 152 - Large flange rivet nut;

[0055] 160 - Second connector;

[0056] 170 - Third connector;

[0057] 180 - First seal;

[0058] 190 - Second seal. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. All other obtained embodiments are within the scope of protection of this application. In the absence of conflict, the following embodiments and features can be combined with each other.

[0060] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0061] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0063] In the process of conceiving and implementing this application, the applicant discovered at least the following problems: the copper busbars in the battery box have a relatively complex wiring arrangement, poor safety, and take up space.

[0064] The battery box proposed in this application, by adding concave beams to form recessed sections to accommodate cables, allows for neater cable arrangement, reduces space occupation, optimizes internal space layout, and improves the integration and compactness of the battery box. Simultaneously, the concave beams in the frame employ a concave-shaped aluminum extrusion profile longitudinal beam design, which significantly enhances the overall structural strength of the battery box, improves impact and vibration resistance, and strengthens safety. Furthermore, the liquid cooling plate effectively exchanges heat with the battery modules through liquid cooling channels, keeping the batteries within their optimal operating temperature range and improving battery performance and lifespan.

[0065] The battery box provided in this application will be described in detail below with reference to specific embodiments.

[0066] Figure 1 This is an exploded view of the battery box according to an embodiment of this application. Figure 2 This is a schematic diagram of the frame structure in the battery box according to an embodiment of this application. Figure 3 for Figure 2 A magnified view of a section at point I.

[0067] like Figures 1 to 3 As shown in the figure, this application embodiment proposes a battery box 100, including:

[0068] The box body 110 includes a box cover 111, a frame 112 and a bottom protective plate 113. The box cover 111 and the bottom protective plate 113 are respectively disposed on the upper and lower sides of the frame 112, and the box cover 111, the bottom protective plate 113 and the frame 112 form a receiving cavity.

[0069] The liquid cooling plate 120 is disposed on the bottom protective plate 113 and located in the receiving cavity. The liquid cooling plate 120 has a liquid cooling flow channel for the flow of coolant.

[0070] The battery module is attached to the liquid cooling plate 120, which is used for heat exchange of the battery module.

[0071] The frame 112 includes a U-shaped beam 1121, which is disposed on the liquid cooling plate 120. The U-shaped beam 1121 has a recess for accommodating the cables 130 of the battery box 100.

[0072] It is understandable that the purpose of the cavity is to house the battery module. It is also easy to understand that the cavity is sealed to prevent side reactions from occurring within the battery cells, which could affect the cell performance.

[0073] For example, the size or shape of the receiving cavity is matched with the size and shape of the battery module. Specifically, it can be adjusted according to the actual situation. This application embodiment does not impose too many restrictions here.

[0074] In this embodiment, the battery module can be configured as a rectangular structure. The battery module can be located inside the housing 110.

[0075] Understandably, housing 110 can be used to support the battery module.

[0076] The dimensions of the aforementioned housing 110 can be set according to actual needs, and this embodiment of the application does not impose any restrictions on them.

[0077] In addition, it should be noted that the shape of the box 110 is not limited in this embodiment. For example, the box 110 can be a regular shape such as a cuboid or a cylinder. Of course, the box 110 can also be other irregular shapes.

[0078] In one possible implementation, the housing 110 can be a rectangular structure, and the size of the housing 110 can be greater than or equal to the size of the battery module, so that the housing 110 can support the battery module.

[0079] In some embodiments, the cover 111 and bottom guard plate 113 provide additional protection for the battery module, preventing external environmental factors (such as dust, moisture, and physical impact) from affecting the battery module, improving the overall structural integrity of the housing 110, and providing additional rigidity and strength. At the same time, this design also helps to seal the battery housing 100 and maintain the stability of the internal environment.

[0080] In some embodiments, the materials and structure of the cover 111 and the bottom guard plate 113 can be adjusted according to specific application requirements to adapt to different environmental conditions and performance requirements.

[0081] In some embodiments, the lid 111 is made of glass fiber composite material using RTM molding process to meet lightweight structural design requirements.

[0082] In some embodiments, the bottom protection plate 113 is made of high-strength steel. Using this material, a thinner and lighter material can be used to meet the bottom protection requirements of the entire package, as well as the requirements for lightweight design and the energy density of the entire package.

[0083] In some embodiments, the bottom protective plate 113 and the liquid cooling plate 120 need to be sealed by the bottom protective plate 113 sealing ring for structural sealing of the bottom cavity.

[0084] In some embodiments, the bottom of the bottom guard plate 113 is coated with PVC for armor, further enhancing the bottom protection of the entire package.

[0085] In some alternative embodiments, the bottom guard plate 113 is a stamped part.

[0086] It should be noted that the stamping process can form complex geometric shapes and reinforcing ribs on the bottom guard plate 113, thereby improving its structural strength and rigidity. Through the stamping process, the amount of material used can be reduced without affecting strength, thus reducing the weight of the bottom guard plate 113.

[0087] In some embodiments, the liquid cooling plate 120 is made of stamped aluminum plates brazed together. In order to achieve lightweighting, thinner materials are used for both the upper and lower plates, while also having more efficient thermal management performance. In addition, the water nozzle is external, which is convenient for installation and also reduces the configuration of joints and hoses inside the box.

[0088] It should be noted that the cable 130 housed in the recess enables an electrical connection between the external power source and the battery module.

[0089] By adding the U-shaped beam 1121 to form a recessed portion to accommodate the cable 130, the cable 130 can be arranged more neatly, reducing space occupation, optimizing the internal space layout, and improving the integration and compactness of the battery box 100. At the same time, the U-shaped beam 1121 in the frame 112 adopts a U-shaped aluminum extrusion profile longitudinal beam design. This structure can significantly improve the overall structural strength of the battery box 100, improve its impact and vibration resistance, and enhance safety. In addition, the liquid cooling plate 120 effectively exchanges heat with the battery module through the liquid cooling channel circulating coolant, keeping the battery within the optimal operating temperature range and improving battery performance and lifespan.

[0090] Specifically, by integrating the liquid cooling plate 120, the U-shaped beam 1121, and the battery module into a single system, the design and manufacturing process of the battery box 100 is simplified, which helps to achieve modular production and maintenance.

[0091] In some alternative embodiments, the U-beam 1121 is located in the middle of the frame 112 to divide the receiving cavity into two chambers;

[0092] There are two battery modules, which are located in two separate chambers.

[0093] It should be noted that the U-shaped beam 1121, located in the middle of the frame 112, not only serves as a divider but also enhances the overall structural strength of the frame 112. This design helps improve the impact and vibration resistance of the battery box 100, increasing its durability.

[0094] Furthermore, by separating the battery modules into two independent chambers, the temperature within each chamber can be controlled more precisely. The liquid cooling plate 120 can exchange heat between the two battery modules separately, ensuring that each module operates at its optimal temperature and improving overall thermal management efficiency. Separating the battery modules into different chambers facilitates independent inspection and replacement, simplifying the maintenance process and improving maintenance efficiency.

[0095] like Figure 2 As shown, in some optional embodiments, the frame 112 includes a front beam 1122, a rear beam 1123, a left beam 1124, and a right beam 1125, which are connected in sequence.

[0096] The U-shaped beam 1121 extends along the first direction, and the rear beam 1123 is provided with a connector 140. The first end of the cable 130 is inserted into the connector 140, and the second end of the cable 130 is inserted into the connector end of the front beam 1122.

[0097] The first direction is the direction from the rear beam 1123 to the front beam 1122.

[0098] It should be noted that by setting a connector 140 on the rear side beam 1123 and inserting the first end of the cable 130 into it, while the second end is inserted into the connector on the front side beam 1122, the neat arrangement and fixation of the cable 130 are achieved. This design helps reduce the loosening and tangling of the cable 130, improves the neatness and reliability of the system, ensures the reliability of electrical connections, reduces the risk of poor contact, and improves the electrical performance of the entire system.

[0099] In some embodiments, the use of connector 140 makes it easier to connect and disconnect cable 130, and supports modular design and maintenance.

[0100] In some embodiments, the U-beam 1121 extends along a first direction of the frame 112, providing additional structural support. The design of the frame 112, combining the front beam 1122, rear beam 1123, left beam 1124, and right beam 1125, enhances the overall structural strength and stability, enabling it to better resist external impacts and vibrations.

[0101] The frame 112, which is composed of welded structural beams, is able to withstand large loads and has strong bending and torsional resistance, ensuring that the box 110 is not easily deformed during use.

[0102] In some embodiments, the left beam 1124 and the right beam 1125 are both longitudinal beams for whole-package installation. They are equipped with reinforcing ribs inside to increase structural strength, and the bottom is provided with an overflow groove and a bottom guard plate 113 to hide the steps. The outer side is provided with ten installation lifting point positions and two positioning holes to ensure the strength of the lifting points and the positioning of the whole package.

[0103] In some embodiments, the rear beam 1123 is L-shaped, and the stepped surface in the L-shaped structure is the mounting and fixing surface of the module end plate. A reinforcing rib is provided in the middle to improve the structural strength and rigidity.

[0104] In some embodiments, the rear side beam 1123 is provided with electrical installation through holes and wire harness fixing holes.

[0105] In some embodiments, the front beam 1122 is a rectangular beam with mounting holes and fixing points for each plug-in on its outer surface. The bottom is provided with an overflow groove and a hidden step in the bottom guard plate 113 to ensure that the bottom guard plate 113 does not bear weight and does not deform.

[0106] In some embodiments, the battery box 100 also includes a water tap reinforcement bracket.

[0107] In some embodiments, there are two water nozzle reinforcement brackets with an "L"-shaped cross-section. One side is screwed to the rear beam 1123, and the other side is screwed to the water nozzle of the liquid cooling plate 120. This not only improves the structural strength of the external water nozzle but also protects it.

[0108] Continue to refer to Figure 2 In some alternative embodiments, the frame 112 also includes a crossbeam 1126, which is disposed on the bottom guard plate 113 and located between the left beam 1124 and the right beam 1125.

[0109] The U-shaped beam 1121 connects the rear side beam 1123 and the cross beam 1126.

[0110] It should be noted that the crossbeam 1126 is mounted on the bottom guard plate 113 and located between the left beam 1124 and the right beam 1125, providing additional support for the frame 112. The U-beam 1121 connects the rear side beam 1123 and the crossbeam 1126, forming a more stable structure. This design can effectively improve the torsional and bending resistance of the frame 112.

[0111] Furthermore, the addition of the crossbeam 1126 enhances the rigidity of the frame 112 in all directions, providing better stability, especially when subjected to vertical and horizontal loads. This is crucial for the safety and reliability of the battery box 100 in vehicles or other applications.

[0112] Furthermore, by adding crossbeams 1126 to the frame 112, the internal space can be better organized and divided. This layout optimization helps to more effectively arrange battery modules, liquid cooling plates 120, and other components, improving space utilization.

[0113] In addition, in some embodiments, the U-shaped beam 1121 connects between the rear side beam 1123 and the crossbeam 1126, providing a natural passage for the arrangement and protection of the cable 130, further optimizing the management of the cable 130 and reducing the risk of damage to the cable 130.

[0114] In some embodiments, the concave beam 1121 overlaps with the rear beam 1123 and the crossbeam 1126 respectively to improve structural strength. At the same time, the left and right sides of the concave beam 1121 are connected to the bottom of the battery module with excess adhesive, so that the battery module on the left and the battery module on the right are connected as one unit through the concave beam 1121 in the middle.

[0115] In some embodiments, copper busbars and wire harness fixing holes are provided on the surface of the U-beam 1121, wherein the copper busbars here may refer to the cable 130 mentioned above.

[0116] Figure 4 This is a partial structural diagram of the frame in the battery box according to an embodiment of this application. Figure 5 for Figure 4 A magnified view of section II in the middle.

[0117] like Figure 4 and Figure 5 As shown, in some alternative embodiments, the U-beam 1121 includes a first beam 11211 and two second beams 11212;

[0118] The first beam 11211 is located on the bottom guard plate 113, and the two second beams 11212 are located on opposite sides of the first beam 11211, and the first beam 11211 and the two second beams 11212 form a recessed part.

[0119] The first beam 11211 has a support surface, which is the bottom surface of the recessed part, to support the cable 130.

[0120] It should be noted that the recess formed by the first beam 11211 and the two second beams 11212 provides a dedicated channel for the cable 130. The supporting surface of the first beam 11211 serves as the bottom surface of the recess, effectively supporting and fixing the cable 130, preventing the cable 130 from moving or being damaged during use, thereby improving the service life of the cable 130 and the reliability of the system.

[0121] Furthermore, the design of the U-beam 1121, through the combination of the first beam 11211 and two second beams 11212, forms a robust structure. This design not only enhances the overall strength of the frame 112 but also improves its impact and vibration resistance, ensuring stability under various working conditions.

[0122] Furthermore, the presence of the recess allows the cables 130 to be neatly arranged within the frame 112, which not only saves space but also avoids the cables 130 becoming messy and tangled, thus improving the utilization efficiency of the internal space.

[0123] Figure 6 This is an assembly diagram of the recessed beam, bottom protective plate, and liquid cooling plate in the battery box according to an embodiment of this application. Figure 6 As shown, in some optional embodiments, both the first beam 11211 and the second beam 11212 are hollow structural members.

[0124] It should be noted that the hollow structure significantly reduces the weight of the beam, which is especially important for the battery box 100, which needs to be moved or installed in applications such as vehicles. This reduces the amount of material used, thereby lowering production costs. Furthermore, despite the hollow design, the beam's geometry still provides sufficient strength and rigidity.

[0125] like Figure 6 As shown, in some optional embodiments, the battery box 100 further includes a first connector 150, a bottom protective plate 113 with a first connection hole, a liquid cooling plate 120 with a second connection hole, and a first beam 11211 with a third connection hole.

[0126] The first connector 150 passes through the first connecting hole, the second connecting hole and the third connecting hole in sequence, and at least a portion of the first connector 150 is accommodated within the first beam 11211.

[0127] It should be noted that the first connector 150 is used to fix the U-beam 1121, the liquid cooling plate 120 and the bottom protective plate 113. Since the first beam 11211 is a hollow structure, at least part of the first connector 150 can be hidden to improve space utilization.

[0128] In some embodiments, the first connector 150 may include bolts 151 and large flange rivet nuts 152, wherein the first beam 11211 may conceal the bottom of the bolts 151 and the tail of the large flange rivet nuts 152 to protect the components of the housing 110.

[0129] It should be noted that, in this embodiment of the application, considering the cost of the first connector 150, the first connector 150 can be a threaded fastener. Correspondingly, a first connection hole is opened on the bottom guard plate 113. The first connection hole can be a threaded hole. The first connector 150 can pass through the first connection hole and can be adjusted for fixed and disassembled by tightening or loosening.

[0130] In addition, a second connection hole is provided on the liquid cooling plate 120. The second connection hole can also be a threaded hole. The first connector 150 can pass through the first connection hole and can be adjusted for fixing and disassembly by tightening or loosening.

[0131] Correspondingly, the first beam 11211 has a third connecting hole, which can also be a threaded hole.

[0132] Specifically, the first connector 150 passes through the first connecting hole, the second connecting hole and the third connecting hole in sequence and is tightened, thereby fixing the bottom guard plate 113 and the liquid cooling plate 120 to the concave beam 1121.

[0133] Figure 7 This is a first-view assembly cross-sectional view of the frame and bottom protective plate in the battery box according to an embodiment of this application, as shown below. Figure 7 As shown, in some embodiments, the battery box 100 further includes a second connector 160 for mounting the bottom protective plate 113 and the liquid cooling plate 120 to the frame 112.

[0134] In some embodiments, the second connector 160 can be a rivet nut. It is fixed to the bottom of the frame 112, wherein the fixing position should have sufficient effective sealing width, that is, the minimum width for applying structural sealant between the liquid cooling plate 120 and the frame 112.

[0135] In some embodiments, the bottom guard plate 113 is fixed to the bottom frame 112 by bottom mounting bolts 151 and rivet nuts on the large flange at the middle position.

[0136] Figure 8 This is a second-view assembly cross-sectional view of the frame and bottom protective plate in the battery box according to an embodiment of this application, as shown below. Figure 8 As shown, in some embodiments, the battery box 100 further includes a third connector 170, the liquid cooling plate 120 is fixed to the bottom of the frame 112 through the third connector 170, and structural sealant is used to ensure the sealing inside the box, and a notch is made at the position of the rivet nut to avoid obstruction.

[0137] In some embodiments, the third connector 170 may be an FDS nail.

[0138] like Figure 1 As shown, in some alternative embodiments, the battery box 100 further includes a first seal 180 and a second seal 190;

[0139] The first seal 180 is located between the cover 111 and the frame 112, and the second seal 190 is located between the frame 112 and the bottom guard plate 113.

[0140] It should be noted that the first seal 180 is located between the cover 111 and the frame 112, and the second seal 190 is located between the frame 112 and the bottom protective plate 113. These seals can effectively prevent moisture and dust from entering the battery box 100, protect the battery module and other sensitive components from environmental influences, and extend their service life.

[0141] Sealing materials typically have a certain degree of elasticity, which can absorb vibration and impact to some extent, providing additional shock absorption and cushioning effects, and protecting internal components from damage caused by mechanical stress.

[0142] In some embodiments, the first seal 180 and the second seal 190 may be sealing rings.

[0143] In some embodiments, the first seal 180 is foamed silicone, which is adhered between the end of the lid 111 and the end of the frame 112.

[0144] In some embodiments, the surfaces of the first sealing member 180 and the second sealing member 190 are provided with a certain number of equidistant holes for use with the bolts 151 for fixing and limiting, so as to ensure the sealing of the entire package.

[0145] In some embodiments, multiple lifting lugs are welded to the outer periphery of the frame 112 to facilitate transportation and lifting.

[0146] The number of hanging point bushings is ten, and their cross-section is T-shaped bushing. The top is welded and fixed to the left beam 1124 and the right beam 1125. The bottom of the frame 112 at the position corresponding to the mounting bolt 151 is provided with an installation process through hole.

[0147] In some alternative implementations, the U-beam 1121 is a one-piece molded structural component.

[0148] It should be noted that by making the concave beam 1121 a single piece, not only can the connection strength between the concave beams 1121 be improved, but also the seamless connection between the various structural components of the concave beam 1121 can be achieved, thereby reducing the risk of cracking at the connection points between the various structural components of the concave beam 1121.

[0149] like Figure 2 As shown, in some embodiments, the battery box 100 further includes an electrical component mounting beam 1127, which is formed by overlapping and welding three BMS mounting beams (left 11271, right 11272, left short longitudinal beam 11273, relay mounting plate 11274, short crossbeam 11275, BDU mounting beam 11276, and right short longitudinal beam 11277) to the frame 112, used to fix various electrical components, copper busbars, and wiring harnesses. The optimal overlapping method of the mounting beams and mounting plates not only satisfies the reasonable layout of the electrical compartment but also improves the overall modality of the electrical compartment area.

[0150] The battery box provided in this application embodiment includes a box body, including a box cover, a frame, and a bottom protective plate. The box cover and the bottom protective plate are respectively disposed on the upper and lower sides of the frame, and the box cover, the bottom protective plate, and the frame form a receiving cavity. A liquid cooling plate is disposed on the bottom protective plate and located in the receiving cavity. The liquid cooling plate has a liquid cooling channel for the flow of coolant. A battery module is attached to the liquid cooling plate, and the liquid cooling plate is used to exchange heat with the battery module. The frame includes a U-shaped beam disposed on the liquid cooling plate. The U-shaped beam has a recessed portion for accommodating the cables of the battery box.

[0151] By adding U-shaped beams to create recessed sections to accommodate cables, the cable arrangement becomes neater, reducing space occupation, optimizing the internal space layout, and improving the integration and compactness of the battery box. Simultaneously, the U-shaped beams in the frame utilize a U-shaped aluminum extrusion profile longitudinal beam design, which significantly enhances the overall structural strength of the battery box, improves impact and vibration resistance, and strengthens safety. Furthermore, the liquid cooling plate effectively exchanges heat with the battery modules through liquid cooling channels, keeping the batteries within their optimal operating temperature range and improving battery performance and lifespan.

[0152] In addition, this application also provides an electronic device, including the battery box 100 described above.

[0153] It should be noted that the specific structure of the battery box 100 will not be limited here; please refer to the above.

[0154] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0155] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0156] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery box (100), characterized in that, include: The box body (110) includes a box cover (111), a frame (112) and a bottom guard plate (113). The box cover (111) and the bottom guard plate (113) are respectively disposed on the upper and lower sides of the frame (112), and the box cover (111), the bottom guard plate (113) and the frame (112) form a receiving cavity. A liquid cooling plate is disposed on the bottom protective plate (113) and located in the receiving cavity, and the liquid cooling plate has a liquid cooling channel for the flow of coolant; A battery module is attached to the liquid cooling plate, which is used for heat exchange of the battery module. The frame (112) includes a U-shaped beam (1121) disposed on the liquid cooling plate, the U-shaped beam (1121) having a recessed portion for accommodating the cables (130) of the battery box (100).

2. The battery box (100) according to claim 1, characterized in that, The U-shaped beam (1121) is located in the middle of the frame (112) to divide the receiving cavity into two chambers; There are two battery modules, and the two battery modules are located in the two chambers respectively.

3. The battery box (100) according to claim 1, characterized in that, The frame (112) includes a front beam (1122), a rear beam (1123), a left beam (1124), and a right beam (1125), which are connected in sequence. The U-shaped beam (1121) extends along a first direction, and the rear beam (1123) is provided with a connector (140). The first end of the cable (130) is inserted into the connector (140), and the second end of the cable (130) is inserted into the connector end of the front beam (1122). Wherein, the first direction is the direction from the rear side beam (1123) to the front side beam (1122).

4. The battery box (100) according to claim 3, characterized in that, The frame (112) also includes a crossbeam (1126), which is disposed on the bottom protective plate (113) and located between the left side beam (1124) and the right side beam (1125); The U-shaped beam (1121) is connected between the rear side beam (1123) and the cross beam (1126).

5. The battery box (100) according to any one of claims 1-4, characterized in that, The U-shaped beam (1121) includes a first beam (11211) and two second beams (11212); The first beam (11211) is disposed on the bottom protective plate (113), and the two second beams (11212) are located on opposite sides of the first beam (11211), and the first beam (11211) and the two second beams (11212) form the recessed portion; The first beam (11211) has a support surface, which is the bottom surface of the recess, to support the cable (130).

6. The battery box (100) according to claim 5, characterized in that, Both the first beam (11211) and the second beam (11212) are hollow structural components.

7. The battery box (100) according to claim 6, characterized in that, The battery box (100) also includes a first connector (150), the bottom protective plate (113) has a first connection hole, the liquid cooling plate has a second connection hole, and the first beam (11211) has a third connection hole. The first connector (150) passes through the first connecting hole, the second connecting hole and the third connecting hole in sequence, and at least part of the first connector (150) is accommodated within the first beam (11211).

8. The battery box (100) according to any one of claims 1-4, characterized in that, The battery box (100) also includes a first seal (180) and a second seal (190); The first sealing element (180) is disposed between the box cover (111) and the frame (112), and the second sealing element (190) is disposed between the frame (112) and the bottom guard plate (113).

9. The battery box (100) according to any one of claims 1-4, characterized in that, The concave beam (1121) is a one-piece molded structural component.

10. An electronic device, characterized in that, Includes the battery box (100) as described in any one of claims 1 to 9.

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